CN201138008Y - Heating and domestic hot water household heat exchange device - Google Patents

Abstract

In order to solve the problem that residents can realize geothermal heating and supply low-priced, safe and reliable domestic hot water at the same time in residential areas that adopt ordinary heating, the utility model provides a geothermal and domestic hot water household heat exchange device. A housing 9 is provided, and an inspection door 14 is arranged on the housing 9. A heat exchanger 1, a water pump 12, a controller 10, a temperature sensor 4, a valve and a pipe connection 2 are installed in the housing 9. In the heat exchange The water supply pipeline a1 on the heat source side, the return water pipeline a2 on the heat source side, the water supply pipeline b1 on the domestic hot water side, and the return water pipeline b2 on the domestic hot water side are respectively arranged on the device 1; There are geothermal side water supply pipeline c1 and geothermal side return water pipeline c2. Beneficial effects: convenient and economical, safe and energy-saving, small in size and suitable for household installation. By controlling the water supply temperature, water flow, etc., it can prevent the deformation of the floor due to excessive temperature and the lack of water. Compared with the domestic hot water provided by the electric water heater, the domestic hot water provided has constant water temperature, precise control and is more economical.

Description

Heating and domestic hot water household heat exchange device

Technical field:

The utility model belongs to the field of heating, ventilating and heating, in particular to a household heat exchange device for heating and domestic hot water.

Background technique:

There are currently two types of heating in residential areas and office spaces, one is common radiator heating, and the other is geothermal heating. Since ordinary radiators require high hot water temperature for heating, it is impossible for residents to use geothermal heating in residential areas that use ordinary heating. In addition, the current domestic hot water supply methods are mainly electric water heaters and gas water heaters. These two methods are costly and prone to safety hazards due to quality problems.

Invention content:

The utility model provides a household heat exchange device for geothermal and domestic hot water in order to solve the problem that residents can realize geothermal heating and simultaneously supply low-priced, safe and reliable domestic hot water in a residential area that adopts ordinary heating. The device is provided with a housing (9), and an inspection door (14) is provided on the housing (9). The housing (9) is equipped with a heat exchanger (1), a water pump (12), a controller (10), A temperature sensor (4), a valve, and a pipe connector (2), and the heat exchanger (1) is respectively provided with a heat source side water supply pipeline (a1), a heat source side return water pipeline (a2) and a domestic hot water side Water supply pipeline (b1), domestic hot water side return water pipeline (b2); the heat source side supply and return water pipeline is through the shut-off valve (11), filter (6), electric regulating valve (7), A conversion ball valve (5), an exhaust valve (3), and a discharge valve (13) are formed in series with the heat exchanger (1) through a pipeline; ), discharge valve (13), temperature sensor (4), form through pipeline and heat exchanger (1) in series; also be connected with geothermal side supply (c1), return water pipeline ( c2), formed by connecting the shut-off valve (11), the electric three-way valve (8), the temperature sensor (4) and the water pump (12) in series through pipelines.

The characteristics and beneficial effects of the utility model: it is convenient, economical, safe and energy-saving, small in size and suitable for household installation. While ensuring the indoor heating temperature, the water supply temperature can also be controlled to prevent the floor from being deformed due to excessive temperature; the domestic hot water provided by this device is compared with the domestic hot water provided by the electric water heater. The domestic hot water temperature is constant, the control is precise, and there will be no shortage of water; the domestic hot water provided by the heat exchange unit is more economical. The daily hot water consumption of ordinary families is calculated as 300L. The domestic hot water provided is 5.544 yuan less per day than the electric water heater, and 166.32 yuan a month. The time setting function of the controller is used to realize the timing switch of the unit, so as to achieve the purpose of saving energy.

Description of drawings:

Fig. 1 structural representation of the utility model

Fig. 2 working principle diagram of the utility model

Detailed ways:

Referring to Fig. 1, the household heat exchange device for heating and domestic hot water, the device is provided with a housing 9, and an inspection door 14 is provided on the housing 9, and a heat exchanger 1, a water pump 12, and a controller 10 are installed in the housing 9 , a temperature sensor 4, a valve and a pipe connector 2, and the heat exchanger 1 is respectively provided with a heat source side water supply pipeline a1, a heat source side return water pipeline a2, a domestic hot water side water supply pipeline b1, a domestic hot water side Return water pipeline b2; the heat source side supply and return water pipelines pass through the shut-off valve 11, the filter 6, the electric control valve 7, the conversion ball valve 5, the exhaust valve 3, and the discharge valve 13, through the pipeline and the heat exchanger 1 formed in series; the domestic hot water side supply and return pipelines are formed through the shut-off valve 11, the discharge valve 13, and the temperature sensor 4 in series with the heat exchanger 1; the supply and return pipelines on the heat source side The road is also connected with the geothermal side supply c1 and the return water pipeline c2, which are formed in series through the shut-off valve 11, the electric three-way valve 8, the temperature sensor 4 and the water pump 12 through pipelines.

The domestic hot water side supply and return pipelines and the geothermal water side supply and return pipelines are arranged in parallel.

The temperature sensor 4 , the electric regulating valve 7 , the electric three-way valve 8 and the water pump 12 on the pipeline are respectively electrically connected with the controller 10 .

working principle:

Referring to Figure 2, the domestic hot water supply temperature provided by the heating and domestic hot water household heat exchange device is calculated by the temperature sensor on the domestic hot water secondary side water supply pipe, and the actual temperature of the domestic hot water secondary side water supply pipe The real-time changes are sent to the controller, so that the controller can implement timely and accurate monitoring, and adjust the flow of hot water entering the plate heat exchanger on the primary side of the heat source by adjusting the opening of the electric control valve on the water supply pipeline on the primary side of the heat source. So as to achieve the purpose of controlling the temperature of domestic hot water supply; the control of geothermal water supply temperature is to send the real-time change of the actual temperature of the water supply pipeline on the geothermal secondary side to the controller through the temperature sensor on the geothermal secondary side water supply, so that the control The device can implement timely and accurate monitoring. By adjusting the opening of the electric three-way valve used for water mixing, the water volume of the primary side of the heat source and the water volume of the return water of the secondary side of the geothermal are mixed in a certain proportion to achieve the secondary side of the geothermal. The purpose of keeping the water supply temperature constant; the controller adopts liquid crystal display, and the controller also has the function of timing on and off, and the timing on and off of the unit can be realized by setting the time to achieve the purpose of energy saving.

Example:

Household heat exchange device for heating and domestic hot water, the device is provided with a housing 9, and an inspection door 14 is provided on the housing 9, and the housing 9 is equipped with a heat exchanger 1, a water pump 12, a controller 10, and a temperature sensor 4 , valves, and pipe connectors 2. The heat exchanger 1 is respectively provided with a heat source primary side supply a1, a return water pipeline a2, a domestic hot water secondary side supply b1, and a return water pipeline b2; the high-temperature hot water of the primary heat source The pipeline passes through the ball valve 5, the filter 6, the electric control valve 7, and then the ball valve 5 and finally enters the plate heat exchanger 1. The high-temperature hot water transfers heat to the secondary side of the domestic hot water through heat transfer and enters the plate heat exchanger. 1, then becomes hot water with a lower temperature and flows out of the plate heat exchanger 1, and the cold water entering the plate heat exchanger 1 on the secondary side of the domestic hot water gets heat and becomes the domestic hot water required by the user, through the domestic heat The temperature signal collected by the temperature sensor on the water supply pipeline b1 on the secondary side of the water is transmitted to the controller 10, and then the controller 10 controls the opening of the electric regulating valve 7, thereby controlling the high-temperature hot water on the primary side of the heat source to enter the plate heat exchanger 1 to achieve an ideal temperature for the domestic hot water on the secondary side; part of the hot water from the primary side heat source in the pipeline enters the electric three-way valve 8 through the three-way between the filter 6 and the electric regulating valve 7, It mixes with the geothermal return water on the secondary side to become hot water with a suitable temperature for geothermal heating, and sends it to the geothermal pipeline of the user through the circulation pump 12. A temperature sensor 4 is also installed on the geothermal secondary side water supply pipeline c1, which Send the detected real-time temperature to the controller 10, and use the controller 10 to control the opening of the electric three-way valve 8, so as to control the mixing amount of the hot water on the primary side of the heat source and the return water on the secondary side of the geothermal heat to reach the temperature of the geothermal water supply For the purpose of constant, the remaining water volume of hot water on the primary side of the heat source and return water on the secondary side of the geothermal heat source enters the return water pipeline a2 on the primary side of the heat source through the pipeline, and then returns to the external network.

Claims (3)

1. Household heat exchange device for heating and domestic hot water. This device is provided with a housing (9), and an inspection door (14) is provided on the housing (9). The housing (9) is equipped with a heat exchanger (1 ), a water pump (12), a controller (10), a temperature sensor (4), a valve and a pipe connector (2), it is characterized in that: the heat source side water supply pipelines are respectively arranged on the heat exchanger (1) (a1), return water pipeline on the heat source side (a2), water supply pipeline on the domestic hot water side (b1), and return water pipeline on the domestic hot water side (b2); (11), filter (6), electric regulating valve (7), conversion ball valve (5) and exhaust valve (3), discharge valve (13), are formed in series with heat exchanger (1) through pipeline; The side supply and return pipelines of domestic hot water are formed through the shut-off valve (11), the discharge valve (13), and the temperature sensor (4), and are connected in series with the heat exchanger (1) through the pipeline; The return water pipeline is also connected with the geothermal side water supply pipeline (c1) and the return water pipeline (c2), through the shut-off valve (11), the electric three-way valve (8), the temperature sensor (4) and the water pump (12). Pipelines are formed in series. 2. The household heat exchange device for heating and domestic hot water according to claim 1, characterized in that: the domestic hot water side supply and return pipelines and the geothermal water side supply and return water pipelines are arranged in parallel . 3. The household heat exchange device for heating and domestic hot water according to claim 1, characterized in that: a temperature sensor (4), an electric regulating valve (7), and an electric three-way valve (8) on the pipeline And the water pump (12) is respectively connected with the controller (10) electric signal.

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